I was on _alexndr's DevBase v3.31, using his Bootloader & modem provided in this link: http://forum.xda-developers.com/note-4/snapdragon-dev/rom-bob4-devbase-multi-csc-safe-bloat-t3033881/post66785984#post66785984
May be CWM is the problem, try TWRP instead.
I got it from here...